Poor poor poor service

Am really tired of On Air and this is really irritating they keep on not collecting money from my account and I have paid them online last month which I have proof of payment to show and they didn't deduct again this month and their money keep on increasing its either they come and collect their decoder or they must just give Me my balance so that I can settle my account I regret taking their package because they just want Me to be listed as a bad payer from credit beraue I am not gonna be blacklisted whereas I always have their money in my account which they are failing to deduct plz help Me regarding this matter